Local 10-digit dialing? [Telecom]

> How much of the US now requires 10-digit dialing of local calls
>> from land lines? Athens, Georgia, has had it for a few months.

Actually, Athens GA (706/762) has had mandatory ten digit local dialing since during 2006 according to Neustar NANPA and BellSouth.

(John Levine replied)

Every place with overlays, except for NYC where it's 11 digit > local dialing. > > Wikipedia has a list: >
formatting link

Overlays in California and at least northern Illinois require 1+ten as well, not just NYC.

Neustar NANPA has a page of places requiring mandatory ten-digit local dialing. It might not be complete in that it doesn't make mention of mandatory ten-digit dialing across area code boundaries for any local calling to adjacent area codes, but it does list all local 10-digit and 1+ten-digit local dialing that is mandatory within one's own area code:

formatting link

Here, sorted "regionally" is a list of all overlays and other ares requiring 10-digit or 1+ten local dialing in the home NPA:

617/857 508/774 781/339 978/351

212/646 718/347 and 917 overlays all of NYC as well

201/551 973/862 732/848

215/267 (additional overlay 445 not yet effective) 610/484 (additional overlay 835 not yet effective) 412 (Pittsburgh "core") and 724 (the rest of southwest PA) were overlaid with 878 in August 2001, but there are still not yet any 878-NXX codes assigned yet.

301/240 (additional overlay 227 not yet effective) 410/443 (additional overlay 667 not yet effective)

703/571

304/681 (effective early 2009)

330/234 419/567

248/947

847/224 630/331 815/779

704/980

404 (Atlanta "core") and 770 (outer "ring") were overlaid with 678 in January 1998, and then with 470 in September 2001, but there are still not yet any 470-NXX codes assigned yet. 706/762

407/321 (additional overlay 689 not yet effective) -- (NASA and Brevard County area had split from 407 and are 321 ONLY, NOT in overlay or mandatory 10-digit dialing). 954/754 305/786 (Presently only the Miami/Dade/Ojus/Homestead mainland is overlaid with 786; the Keys are still only using 305, but plans are for 786 to eventually overlay the Keys too, and 10-digits is permissive).

601/769

713/281/832 214/972/469 817/682 903/430

303/720

801/385 (effective early 2009)

503/971

310/424 (FINALLY took effect as an OVERLAY in August 2006, which was the original plan for Summer 1999). 714/657 (effective in September 2008) 818/747 (effective probably in 2009)

And also the following in Canada and the Caribbean:

514/438 450 (ten-digit mandatory dialing since October 2006; but no overlay at this time, possible future 438 expansion). 819 (ten-digit mandatory dialing since October 2006; but no overlay at this time, possible future 581 expansion). 418/581 (effective in September 2008)

416/647 905/289 613 (ten-digit mandatory dialing since October 2006; to be overlaid with 343 in Septemer 2010). 519/226

403 & 780 / 587 (effective in September 2008)

604/778 since November 2001, and now the rest of BC, the 250 area code, is also being overlaid last year and this year with 778.

Puerto Rico

787/939

Dominican Repuglic

809/829

There are numerous other overlays that were planned to take effect during 2000, 2001, 2002, but were postponed by state regulatory. NANPA has webpages at their site listing these postponed or "to be effective at a TBD date":

formatting link